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Network Administrator

$85k - $95k

Tata Consultancy Services

Must Have Technical/Functional Skills


Enterprise IT Network
• Cisco Switching: Catalyst (L2/L3)
• Cisco Wireless: WLC, Access Points
• Firewalls: Cisco Firepower / ASA (or equivalent)
• Cisco DNA Center (DNAC)
• Cisco ISE (NAC, authentication)


Core Networking
• TCP/IP, VLANs, VXLAN,
• Routing (OSPF/BGP)
• NAT, ACLs, segmentation


OT Awareness (Good to Have)
• Basic understanding of:


o IT/OT segmentation


o Industrial environments


o OT security concepts

Roles & Responsibilities
• Act as the primary SME for all IT network related incidents.
• Perform end-to-end troubleshooting and resolution independently
• Handle high-severity and production-impacting incidents with full ownership.
• Perform deep root cause analysis (RCA) and implement permanent fixes.
• Manage and support Enterprise IT Network:


o Cisco LAN (Catalyst switches L2/L3)


o Wireless (WLC, Access Points, RF troubleshooting)


o Firewalls (Cisco Firepower / ASA or equivalent)


o Cisco DNA Center (DNAC) monitoring, assurance, compliance


o Cisco ISE authentication, NAC, policy enforcement


o Proactively identify and fix network health and performance issues.


o Work closely with onsite OT/network plant teams for:
• Plant network dependencies
• Industrial connectivity issues
• Change coordination impacting production


o Provide IT-side inputs for IT/OT segmentation and security.


o Perform OT Network troubleshooting


o Execute Network changes (configurations, upgrades, patching)


o Perform New deployments and site expansions


o Ensure Proper risk assessment and rollback planning


o Changes executed during approved windows


o Manage EOL/EOS tracking and remediation.


o Implement and maintain Network segmentation


o Firewall policies and secure access controls


o Vulnerability remediation and patching
o Security incident investigation


o Coordinate with OEM TAC (Cisco, firewall vendors)


o Create, Update and Maintain Network diagrams and configurations


o IP address management


o Create, Update and Maintain SOPs/runbooks


o Ensure accurate ITSM updates and audit compliance.

Generic Managerial Skills, If any
• Strong ownership mindset and ability to work independently is critical
• Excellent troubleshooting and analytical skills
• Ability to handle production-critical situations under pressure
• Clear communication with IT, OT, and business stakeholders
• High discipline in documentation and change processes

Base Salary Range : $85,000 to $95,000 Per Annum

TCS Employee Benefits Summary:


Discretionary Annual Incentive.


Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans.


Family Support: Maternal & Parental Leaves.


Insurance Options: Auto & Home Insurance, Identity Theft Protection.


Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement.


Time Off: Vacation, Time Off, Sick Leave & Holidays.


Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing.

#LI-SV2


#LI-KUMARAN
Vacancy posted 17 hours ago
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